/Engine/Source/Developer/TreeMap/Public/ITreeMap.h
Gets the visuals for this tree map. Be careful not to destroy the original tree while still using the visual objects, otherwise the back pointers to the original tree nodes will be trash! Visuals are ordered such that nested visuals appear later in the list than their parents (so they can be drawn back to front, etc.)
List of visuals
[TArray](API\Runtime\Core\Containers\TArray)< [FTreeMapNodeVisualInfo](API\Developer\TreeMap\FTreeMapNodeVisualInfo) > GetVisuals()